There are retaining walls, that realise a hard height shift in reality. Usually they h

retainning walls with adapted relief? about streets-gl HOT 3 OPEN

strandedkitty commented on May 17, 2024 3

retainning walls with adapted relief?

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rskedgell commented on May 17, 2024

Would it be worth considering this only where height=* or est_height=* is set? We have barrier=retaining_wall for everything between the surrounds of 1 metre high raised beds in accessible gardens to 10 metre high bridge and tunnel approaches on motorways.

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StrandedKitty commented on May 17, 2024

I'm not sure it's possible to accurately render retaining walls. The terrain is just not detailed enough for this.

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Matthias84 commented on May 17, 2024

Yeah and I guess enhancing the DTM is also limited by the internal representation? (raster vs. TIN).
And AFAIK ist this topic also challenging for other devs e.g. O2W https://wiki.openstreetmap.org/wiki/OSM2World#Elevation_data @tordanik describes some nice approaches and tricks in his talks, but it's a real challenge to find generic solutions that don't cause to hard artifacts on other places https://media.ccc.de/search/?q=OSM2world

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